How to determine the proportion and stirring time of gypsum powder?

Gypsum powder can be divided into decorative gypsum powder, architectural gypsum powder, artistic gypsum powder, medical gypsum powder, mold gypsum powder and special mold gypsum powder according to hardness and fineness from low to high. Let's start with the ratio of gypsum powder to water and the stirring time. From the hardness, fineness and solidification time, the higher the grade of gypsum powder, the better the effect and the stronger the mold. The mixture ratio of gypsum powder for super mold is 28 (water): 100 (gypsum powder), which is the highest mixture ratio. The produced gypsum products can achieve the effect of ceramic tiles, and there are no nail marks on the surface. However, it is too difficult for beginners to mix according to this ratio, and it is difficult to control the exact mixing ratio, the selected mixing container, the mixing method and the setting time. Therefore, it is suggested that you mix gypsum powder with the ratio of 35: 100, which can also achieve very good results. Here black horse gypsum building materials remind you of several points: before adding gypsum, you must add water to prepare gypsum powder, otherwise it will be difficult to mix evenly.